PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
PCIe Devices - PLX Technology
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PCI/PCI-X Arbitration Example<br />
n<br />
n<br />
Four PCI devices are plugged into a PCI bus<br />
l<br />
l<br />
<strong>Devices</strong> A and B are grouped as high priority masters<br />
<strong>Devices</strong> X and Y are low priority masters<br />
If all masters make requests at same time, the<br />
sequence in which grants are made may be as<br />
follows<br />
Device Execution Priority<br />
Arbiter<br />
l A - first<br />
l B - second<br />
l X - third<br />
l A - fourth<br />
l B - fifth<br />
l Y - sixth<br />
A<br />
B<br />
X<br />
PCI Bus<br />
Y<br />
Copyright by Dashcourses, Inc. 2009<br />
1-39